лінія розрідження Маха
Mach / Mach number
airspeed/Mach (AS/MACH)
simple rarefaction wave
Mach compression line
supersonic speed (exceeds speed of sound / Mach 1)
flight Mach number
critical Mach number
indicated Mach number (IMN)
local Mach number
Mach angle
Mach cone
Mach number effect
Mach number of a wind tunnel
true Mach number (TMN)
Mach front
Mach stem
Mach wave
deployment line; line of deployment (LD); line of departure
observer-target line (OT line)
scheme trail line (tag line)
armistice demarcation line
beyond line-of-sight (BLOS)
bulk distribution line
cease-fire line (CFL)
combat outpost line
confrontation line
contact line
contamination control line
contour line (contour)
county line
defensive belt / line
delivery line (pipeline)